Mechanics

CHEVY BRAKE LIGHT FLASHING

1991 Chevrolet Cheyenne

Computer problem
1991 Chevy Cheyenne 6 cyl Two Wheel Drive Automatic 145000 miles

I have a 1991 Chevy Cheyenne, 4.3 L engine, that has the brake light flashing. Not sure what could be causing this. Is there a computer on this model truck? Is this a diagnostic code or something? It mainly flashes while driving. Thanks for the advice.
Avatar
Geauxtigers
December 27, 2007.



Hi there,

Check the adjustment of the brake light switch, or replace if adjustment is ok.

Mark (mhpautos)

Mhpautos
Dec 28, 2007.